What's the difference between base plan drawing and shop drawing?

base plan drawing coming from owner issue for construction and shop drawing based on base drawing but more detail to be easily and clear during construction and helping us in bar bending schedule in structure work

Shop drawings might be done after making the project and it is ready to be offered to customers.

And Base plan for the engineers to use while working on the construction site.

base plan drawing may means the tender drawings which are to be issued to the contractors as part of the tender documents. after the tender stage and in the begaining of the project the engineer has to issue to the successful contractor full set of the contract documents which shoud be the same documents issued for tender plus all the amendments and clarification done during the tender stage. before construction contractor make detailed shop drawings and consultant review it